Question

The alpha particles used in Rutherford’s experiment are positively charged particles, in fact each one consists of?

• A. 2 protons and 2 neutrons
• B. 1 proton and 2 neutrons
• C. 1 proton and 1 neutrons
• D. None of the above

Answer 1

The correct option is A

2 protons and 2 neutrons

Explanation for Correct answer:-

Option(a) 2 proton and 2 neutrons:

• Alpha particles that were used in Rutherford's experiment consist of 2 protons and 2 neutrons.
• Hence, (a) is correct option.

Explanation for incorrect answer:-

Option(b) 1 proton and 2 neutrons:

• A particle containing 1 proton and 2 neutrons is called Tritium(${}_1{}^3\mathrm{H}$).
• Hence, incorrect option.

Option(c) 1 proton and 1 neutrons:

• A particle containing 1 proton and 1 neutron is called Deuterium(${}_1{}^2\mathrm{H}$).
• Hence, incorrect option.

Option(d) None of the above:

• Incorrect option.

Therefore, alpha particles used in Rutherford’s experiment are positively charged particles, in which each one consists of 2 protons and 2 neutrons.